Stylographic fountain-pen



J. T. ANDERSEN.

STYLOGRAPHIC FOUNTAIN PEN.

APPLICATION FILED APR.26, 1919.

1 ,"3 1 1 v Patented Apr. 6, 1920.

J fflw/dersen,

llitIiTED;

363G335 THQRVALD ANDERSEN, 0E GUTel'll-STEUI' DEN??? STYLOGBAPHIC EEGUEZE sessile.

Application filed April 556,

To all whom it may concern:

Be it known that 1, Johann THoRvALo ANoEnsEN, a subject or" the King of Denmark, residing at Gundstrup, near Otter-up, in the island of Funen, in the Kingdom cl Denmark, have invented certain new and useful Improvements in Stylographic ountain-Peus, of which the following is a specification.

The object of this inventioii is a fountain pen of the stylographic and which is mainly characterized thereby that the inkin the receptacle thet is communicating with the writing part, preferably a tube point, is not present as a freely movable liquid mess with a liquid level but is in e. kind of latent state, inasmuch as the said receptacle consists of capillary pores in a suitable porous mass. This mass may preferably be inserted in a tube-shaped member which fits into a holder of the shape that is commonly used for fountain pens and from which it can be easily removed. The tube-shaped member either terminates within or is connected with e preferably curved hollow point that constitutes the writing part, and which is also filled with a porous mass.

The filling may be effected by dipping the tube point into ink which will, on account of the capillary action of the porous mass, he quickly sucked up. The writing is due to the circumstance that the capillary action at the point of contact between the paper and the tube point is still more effective than in the porous mass withinthe point, and gradually, as the ink-at the point is used 2'. a. as the pores are more or-less emptied, ink will flow toward the point from the more saturated part of the porous mess above the point. The writing may consequently be continued until the total porous mess is moist to only a very small degree.

A form of construction of the invention is shown diagrammatically on the accoin mnying drawing in which Figure 1 shows the stylographic pen in longituclihal section and Fig. 2 represents, on a smaller scale, the aforesaid process of filling through the dipping of the point into the ink.

The porous mass 3, Fig. 1 constituting the ink receptacle maybe of any suitable lsincl either solid or loose. In the form 01'? construction as illustrated the porous mass is supposed to consist in a loose fibrous mu..-

Specificatior. of letters of saicl tuhe open of ehonite, glass. or the e the other emi is shape-cl cone with a capillary the cone I e plane of the normal ihc lneil writing he is flush with the plane, I r. w ich. will avoid scratching the flowing of the inlz.

corresponding hollow space or a. holder '1 which is of the usual 1 fountain pen shape and arranged. to receive, as shown, at the writing end as well at the cppoiste end, the usual cap 8.

This letter end ncl the cap. 8 are p ovided with channels 9 fill Ci 10 respectively, so that 3, constituting the ink receptacle, is subjected to the pressure ends. Further the cop is of the air st not; provided with wiping device 11.

r [he c e'mis, 1 1own,a.re not essential ans may be Varied ways. 2 will be 3 rrorn what has been easily under-teed explained in the preamble of the specification.

ti may of course be effected by or squirting or sucking device or lets immersion; but a characteristic one that is of special importance arci to cleanliness is, that the may be eliecterl in the way as she is totally impcssih e. will; pens.

I claim:

1. A fluid writing device comprising a hollow elongated barrel terminating at one end in on spertured writing point'and provided at its other curl with: an epert'urerl packed capillary porous 3 means by con head, and a loosely gllbsi'an tially filli barrel nncl wit one supply .vithi' retained by cspill lering any 0.16. level or surface on the fluid being Withdrawn from said.

by the capillary attraction exerted by th paper when the pen is in 2. A device of the 1 in which the barrel shaped member carryin and a tubular holder car head. the major portion member being lGCei'iGi'l holder.

tube shaped "ithin the tubular .3. A device of the kind defined by claim 1 in which the writing point consists of a hollow cone-shaped member which is curved at the point, so that the aperture of the point is obliquely arranged relatively to the axis of the barrel.

4. A fluid writing device comprising a hollow tube shaped member open at one end and provided at its opposite end with a substantially cone-shaped, hollow, apertured writing point, a portion of which is curved to bring the aperture into oblique arrangement relatively to the axis of the member, ,a loosely packed capillary porous mass substantially filling the interior of saidmember 1t and saturated with writing fluid and a 1101-- low tubular holder inelosing the major portion of said member and having an apertured head arranged adjacent to the open end of said member, the member and holder being detachably connected.

In testimony whereof I 'afiix my signature in presence of two witnesses.

ERNEST BoU'rARD, N. BUSGEJENSEN. 

